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Movements, leaders, victories and the continuing fight for equality.
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Explore the people, places, events, achievements, struggles and stories that shaped our journey.
Movements, leaders, victories and the continuing fight for equality.
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Meet the people whose lives, choices and achievements shaped the journey.
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In August 1908, a white mob attacked Springfield, Illinois’s Black community, destroying homes and businesses and lynching two Black men. National outrage over the violence helped spur the movement that created the NAACP the following year.
MORE →Reflects the personal views, recollections, and perspective of the author, Mike Davis.
This is a personal recollection on the Move fire on May 13, 1985
| Discipline | Difference equations |
|---|---|
| Language | English |
| Edited by | R. Agarwal, M. Bohner, E. Braverman |
| Publication details | |
| History | 2004–present |
| Publisher | |
| Yes | |
| 0.335 (2016) | |
| Standard abbreviations | |
| ISO 4 | Adv. Differ. Equ. |
| MathSciNet | Adv. Difference Equ. |
| Indexing | |
| ISSN | 1687-1839 (print) 1687-1847 (web) |
| LCCN | 2006242013 |
| OCLC no. | 59228023 |
| Links | |
Advances in Difference Equations is a peer-reviewed mathematics journal covering research on difference equations, published by Springer Open.
The journal was established in 2004 and publishes articles on theory, methodology, and application of difference and differential equations. Originally published by Hindawi Publishing Corporation, the journal was acquired by Springer Science+Business Media in early 2011.[1] The editors-in-chief are Ravi Agarwal, Martin Bohner, and Elena Braverman.
The journal is abstracted and indexed by the Science Citation Index Expanded, Current Contents/Physical, Chemical & Earth Sciences, and Zentralblatt MATH. According to the Journal Citation Reports, the journal has a 2021 impact factor of 2.803.[2] from July 1, the journal has been transitioning to a new title that opens the scope of the journal to broader developments in theory and applications of models. Under the new title, Advances in Continuous and Discrete Models: Theory and Modern Applications, the journal will cover developments in machine learning, data driven modeling, differential equations, numerical analysis, scientific computing, control, optimization, and computing.[2]
Source: Wikipedia. Article content is retrieved live through the MediaWiki API.
Advances in Difference Equations is a peer-reviewed mathematics journal covering research on difference equations, published by Springer Open. The journal was established in 2004 and publishes articles on theory, methodology, and application of difference and differential equations. Originally published by Hindawi Publishing Corporation, the journal was acquired by Springer Science+Business Media in early 2011. The editors-in-chief are Ravi Agarwal, Martin Bohner, and Elena Braverman.
Journal of Difference Equations and Applications is a peer-reviewed scientific journal published monthly by Taylor & Francis. Established in 1995, it covers research on theory and applications of difference equations and discrete dynamical systems. Its current editor-in-chief is Saber Elaydi (Trinity University).
A finite difference is a mathematical expression of the form f(x + b) − f(x + a). Finite differences (or the associated difference quotients) are often used as approximations of derivatives, such as in numerical differentiation. The difference operator, commonly denoted Δ {\displaystyle \Delta } (uppercase Delta), is the operator that maps a function f to the function Δ [ f ] {\displaystyle \Delta [f]} defined by Δ [ f ] ( x ) = f ( x + 1 ) − f ( x ) . {\displaystyle \Delta [f](x)=f(x+1)-f(x).} A difference equation is a functional equation that involves the finite difference operator in the same way as a differential equation involves derivatives. There are many similarities between difference equations and differential equations. Certain recurrence relations can be written as difference equations by replacing iteration notation with finite differences. In numerical analysis, finite differences are widely used for approximating derivatives, and the term "finite difference" is often used as an abbreviation of "finite difference approximation of derivatives". Finite differences were introduced by Brook Taylor in 1715 and have also been studied as abstract self-standing mathematical objects in works by George Boole (1860), L. M. Milne-Thomson (1933), and Károly Jordan (1939). Finite differences trace their origins back to one of Jost Bürgi's algorithms (c. 1592) and work by others including Isaac Newton. The formal calculus of finite differences can be viewed as an alternative to the calculus of infinitesimals.
In mathematics, a system of equations, also known as a set of simultaneous equations or an equation system, is a finite set of equations for which common solutions are sought. An equation system is usually classified in the same manner as single equations, namely as one of the following: System of linear equations System of nonlinear equations System of bilinear equations System of polynomial equations System of differential equations System of difference equations
Before the 1921 destruction of Tulsa’s Greenwood District, Black residents had created a remarkable center of business and community life. The district included stores, professional offices, entertainment venues and homes owned by Black citizens. Understanding Greenwood means learning what was built—not only what was burned.
MORE →Mae Jemison, aboard Space Shuttle Endeavour in 1992.
